Sample changer



FIG. 1 is front perspective view of a sample changer;

FIG. 2 is a left side elevation view of the FIG. 1 device;

FIG. 3 is a front elevation view of the FIG. 1 device;

FIG. 4 is a right side elevation view of the FIG. 1 device;

FIG. 5 is a rear elevation view of the FIG. 1 device;

FIG. 6 is a top plan view of the FIG. 1 device; and,

FIG. 7 is a bottom plan view of the FIG. 1 device.

The broken lines illustrate unclaimed portions of the sample changer and form no part of the claimed design. 

CLAIM The ornamental design for a sample changer, as shown and described. 